The new upcoming diamond cut grading systems require a debate on the technology providers' challenges and role.

Technology is used in every link of the diamond pipeline: mining, rough diamond planning, manufacturing, quality assurance, grading, and sales promotion. New grading system effects on technology & equipment will include: Rough planning process needs to consider light performance parameters and still output proportions and angles that can be manufactured; quality assurance and grading products need to compare diamond characteristics to relevant light performance data; and sales promotion products need to make new grading system and diamond properties clear and apparent in a simple and straightforward way.

There are two major technology adaptation approaches: (1) direct measurement of light performance; and (2) computer simulation of light performance. Each of these approaches has pros and cons. The methods, key players, pros, and cons are discussed.

Diamond geometry (linear and angular) measurements are and will remain crucial to any cut grading system, especially to computer simulation measurement and grading methods. Key players in this field are discussed and demonstrated. An example of using geometry measurements together with ray tracing simulation to detect a diamond polishing problem is displayed.

Key recommendations are: new grading systems will create great challenges for diamond manufacturers, diamond dealers and retailers, gemological labs, and technology & equipment providers; gemological labs need to be clear about the launching of new grading systems and phasing out of old grading systems; educational and promotional efforts need to be addressed towards the entire diamond pipeline; new grading systems should only be launched when appropriate proven technology and equipment exist for rough planning, quality assurance, grading, and sales promotion; and gemological labs need to be more transparent about their intentions and relationships with technology providers to relieve some of the uncertainty in the industry.

Keywords: DiaVision, measurements, proportions, Sarin.